Sectional boiler.



Patented Aug. 18, 1914.

4 SHEETS-SHEET l'.

G. F. FUCHS.

SEGTIONAL BOILER.

APPLICATION FILED mlm, 1914,

@www @Meo mb Gf?. FUCHS.

SEGTIONAL BOILBR.

APPLICATION FILED Hmz, 1914.

Ll @7,51 0 Patented Aug. 18, 1914,

` 4 SHEETS-SHEET 2.

llllmlllllln 35%?. @Malmo/am Gustave F. Fuchs G. P. FUCHS.

sEoTloNAL Boum.

APPLICATION FILED TBB.2,1914. 12107351 @u Patented Aug. 18, 1914.

m). Gustave F. Fuchs da/wonen G. F. FUCHS. SBGTIONAL BOILER.

APPLICATION FILED PEB.2. 1914.

l, lo?, 51 0. Patented Aug. 18, 1914.

4 SHEETS-SHEET 4.

W Mme ooe Swbgmw GUSTAVE F. FUCHS, OF BELLEVILLE, ILLINOIS.

SECTIONAL BOILER.

Specification of Letters Patent.

Patented Aug. 18, 1914.

Application led February 2, 1914. Serial No. 816,117.

To all whom it may concern Be it known that I, G-UsTAvn F. FUcHs, acitizen of the United States, residing at Belleville, in the county ofS-t. Clair and State of Illinois, have invented certain new and usefulImprovements in Sectional Boilers; and I do declare the following to bea full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

This invention relates to improvements in sectional boilers.

One object of the invention is to provide a boiler comp-rising a seriesof hollow sections which are constructed and arranged to form whenproperly connected, the maga zine, fire-box and the smoke and gasconducting fiues and combustion chamber of the furnace, said fire-boxand flues being arranged to produce the base burning and down draftfeatures which are desirable in this form of boiler.

With this and other objects in view, the invention consists of certainnovel features of construction, and the combination and arrangement ofparts as will be more fully described and claimed,

In the accompanying drawings: Figurevl is a perspective view of myimproved boiler with parts broken away and in section; Fig. 2 is acentral longitudinal vertical section of the boiler; Fig. 3 is avertical cross sectional view taken through one of the sections of theboiler and on the line 3-3 of Fig. Z1; Fig. 1 is a vertical longitudinalsection taken on the line 41-4 of Fig. 3; Fig. 5 is a horizontalsectional view takenvon the line 5-5 of Fig. 3; Fig. 6 is a similar viewtaken on the line 6-6 of Fig. 3; Fig. 7 is a similar view taken on theline 7-7 of Fig. 3; Fig. 8 is a vertical cross section taken between twoof the sections of the boiler4 on the line 8-8 of Fig. 2; Fig. 9 is asimilar view taken on the line 9--9 of Fig. 2 and looking at the innerside of the rear section of the boiler; Fig. 10 is an inner side view ofthe front section of the boiler.

My improved boiler comprises a front section 1 and a rear section 2 anda series of intermediate sections 3, 4 and 5 and 6. All of the sectionsof the boiler are hollow` or are provided with water circulating spacesand said sections are connected or securely fastened together to formthe boiler by tie rods or bolts 7 which are suitably arranged chamb ertherethrough as shown. The water spaces the top of the sections and atthe opposite sides of the bottom thereof are connected by slip joints inthe form of nipples 8 which are engaged with thedischarge openings onone side of the sections and with the inlet openings in the adjacentsides of the adj oining sections whereby the water is permitted tocirculate freely between the hollow walls of the sections.

The front section 1 of the boiler comprises a front plate 9 havingarranged in the center of the upper portion thereof a firing door 10 andin the lower portion thereof a slicing door 11. In the front plate onopposite sides of the iringdoor are formed cleanout openings 12, similaropenings 13 being arranged on opposite sides of the lower door 11, whilebetween the upper and lower cleanout doors and in line therewith arearranged intermediate cleanout doors 141. The sides of the section 1 arein the form of hollow water legs 15 which are connected at their upperends with an arched water chamber 16 which forms the top of the section.Spaced from the hollow sides or water legs 15 of the section 1 areintermediate water legsr 17 which extend from the bottom of the sectionto a point in line with the bottom of the upper clean out openings 12 inthe front plate of the section. At their lower ends the water legs 17are connected with the lower ends of the hollow sides or outer waterlegs of the sections by short hollow connections 18 and at their upperends said water legs are connected with the hollow sides or outer waterlegs 15 by similar hollow connections 19, said connections 19, howeverbeing only approximately half the width of the water legs 15 and 17,thus forming a `space or opening 20 between this part of the section 1and the adjacent part of the adjoining section 2. Connected at theirupper end to the inner sides of the 16 forming the top of the sectionand extending downwardly therefrom parallel to the intermediate waterlegs 17 are inner. water legs 21. The water legs 21 are spaced a shortdistance from the water legs 17 and terminate at their lower ends inline with the top of the space forming the reboX hereinafter described.

The section 2 of the boiler comprises hollow sides which form outerwater legs 22 and which are connected at their upper ends by a hollowarched water chamber 23.

Spaced a suitable distance from the'wat'er' legs 22 formed by the sidesof this section lare intermediate water legs 24. rlhe legs 24 areconnected at their lower ends to the lower ends of the outer water legs22 by hollow connections 25 and said water legs 24 terminate at theirupper ends in line with the upper ends of the intermediate water legs 17o-f the section l. At their upper ends the water legs 24 are connectedwithl the outer water legs of the section by trans-A verse hollow watercirculating connectionsE 26, which are of less width than the ,waterylegs 24, thus forming on one side the continuous spaces 27. Midwaybetween the upper and lower ends of the water legs 24 the; latter areconnected with the outer water; legs by hollow connections 28, saidconnec-' tions being of less width than the water; legs and beingdisposed below the spaces 27 formed by the connections at the upperendsl of the water legs.l Connected at their upper ends with the waterchamber 23 and eXtending downwardly parallel with the intermediate waterlegs 24 and spaced a suitable distance therefrom are inner Water legs 29the lower ends of which terminate in line with.E the top of the hre-boxor with the lowerl ends of the inner water legs 2l of the section l. Thelower ends of the water'legs 29 aref` connected to the adjacent portionof theg; intermediate legs 24 by hollow connectionsi 30 on each side ofwhich and between thei same and the corresponding connections oftheadjoining 'sections are formed drafty openings 3l which will behereinafter de scribed.

The section 4 of the boiler comprises hollow .sides which form outerlegs 32 and which are connected at their upper ends to an arched waterchamber 33. Spaced from the sides or water legs 32 are intermediatellegs 34 which are connected at their lower ends to the lower ends ofthe outer water legs by hollow connections 35 and at their upper endsare connected to the outer water legs by hollow connections 36, saidconnections being of Aless width .than the water legs and disposed inpositions between the j oppositeedges of the legs as shown. Between theopposite sides of the connections 36 when thus arranged and similarconnec# -tions on the adjoining sections of the boiler are formedopenings 37 which provide for the circulation of the products ofcombustion through the passages formed between the water legs as will behereinafter described. The water legs 34 are also connected with theouter water legs 32 by hollow connections 38 corresponding to theconnections 28 of the section 3 except that the connections 38 extendentirely across the space between the inner and outer water legs asshown. Extending downwardly from and connected at their upper ends withthe chamber 33 are inner water-legs 39 which are connected at theirlower ends with the intermediate water legs 34 by narrow centrallydisposed hollow connections 40. `The water legs 39 are also connectedwith the upper ends of the water legs 34 by narrow hollow connections 4lwhich are arranged in line with the lower connections 40.

The section 5 of the boiler is constructed in exactly the same manner asthe section 4 except that the inner water legs 42 of this section areconnected by a hollow wall 43 which extends from the top of the fire boxupwardly to and is connected at its upper end with the arched waterchamber of the section 5. The wall 43 forms the back of the magazineabove the fire-box of the boiler, the front of the magazine and fireboXbeing formed by the front The section 6 of the boiler comprises hollowsides which form outer water legs 45 and which connect at their upperends with plate of the section l hereinbefore described.

the arched water 'chamber'46of this section.

Spaced from the water legs 45 and,` extending upwardly in parallelrelation thereto are inner water legs.. 47 which connectat their lowerends with the lower ends of the outer water legs by hollow connections48 and said inner water legs 47 are further connected with the outervwater legs above the connections 48 by hollow connections 49corresponding to the similarly arranged connections in the sections 4and 5. The water legs 47 terminate at their upper ends in line with theintermediate water legs ofthe previously described section and saidwater legs 47 are connected at their rear edges by a hollow verticalwall 50 from the bottom to the top of the boiler and is connected at itsupper end with the water chamber 46. In the upper portion of the hollowvwall 50 immediately below the water .which extends ioschamber 46 andadjacent to the side edges i of the wall are discharge openings 5l whichform an outlet for the products of combustionl passing from the space 52which is formed between the wall 43 of the section 5 and the wall 50 ofthe section 6 and which communicates at its lower end. with the spaceforming the fire-box, and through whichthe smoke and gases are drawnfrom the latter.

The rear section 2 of the boiler comprises hollow sides 53 which formouter water legs and. which are connected at'their upper ends to ahollow arched chamber 54 forming the top of this section. The water legs53 are connected at their lower ends by a hollow connection 55 whichextends entirely across from one lside to the other of the section andforms the bottom thereof. The sides 53 are further connected above thebottom connection and in line withl the intermediate connections of thepreviously described sections by a hollow transverse partition 56 whichseparates the Arear section into an upper combustion chamber 57 and alower smoke box or chamber 58. rlhe hollow sides, top, bottom andpartition of the section 2 are connected at their rear edges with ahollow wall 59 which forms the rear end of the boiler. In the lowerportion of the wall 59 and opening into the center of the smoke chamber58 is a smoke discharge opening 60 which is adapted to be connected witha stack (not shown). In the wall 59 immediately above the partition 56and near the opposite sides of the combustion chamber 57 are clean outopenings 61 which in practice are closed by suitable doors.

By constructing the various sections of the boiler as herein shown anddescribed it will be seen that when said sections are assembled thespaces formed between the outer sides or water legs and the intermediatewater legs of the sections and between the transverse hollow connectionsof said legs will form upper and lower continuous fiues 62 and 63 whichare connected at the front end of the boiler through the opening betweenthe front edge of the hollow connection 28 of the section 3 and thefront wall of the boiler. rlhe upper iues 62 in the opposite sides ofthe boiler communicate at their rear ends with the combustion chamber 57in the rear section of the boiler, while the rear ends of the lowerflues 63 connect with the smoke chamber 53 in said rear section.

The spaces between the inner and intermediate water legs of the sectionsform draft iues 64 the forward ends ofwhich are closed by the front wallof the boiler and the rear ends of which communicate with the draftpassage between back wall 43 of the magazine and the wall 50 of thesection 6. The draft flues 64 communicate at their lowerends with thespace forming the fire-box, through the openings formed between thevarious hollow connections which connect the lower ends of the innerwater legs with the intermediate water legs of the sections. The flues64 are connected at their upper ends, through the openings between theupper hollow connections of the inner and intermediate water legs, withupper draft flues 65 arranged above the flues 62 and communicatingtherewith through the openings between the upper hollow connectionswhich connect the outer and intermediate water legs of the sections.

The course of the products of combustion through the various flues ofthe boiler is shown by arrows in Fig. l of the drawings and may bedescribed as follows: The smoke and gases when leaving the fire-boX passupwardly through the space or passage between the walls 43 and 50 andpass through the openings 5l into the combustion chamber where furthercombustion takes place. rlhe products of combustion from the combustionchamber pass forwardly through the upper flues 62 to the forward end ofthe boiler, thence into the lower iiues 63 and back through said lowerflues into the smoke chamber 53 from whence the products of combustionpass into a suitable stack. In addition to this circulation of theproducts of combustion a certain amount of the latter will pass upwardlythrough the side draft flues 64 between the inner and intermediate waterlegs of the sections and into the upper draft flues 65 from whence theseproducts are discharged into the flues 62 and commingle with theproducts passing through the latter.

Water discharging connections 66 are arranged in the upper portion ofthe boiler, two of said connections being preferably provided, one ofwhich is arranged in and connects with the water chamber of the section3 and the other of which is arranged in and connects with the waterchamber of the section 5. Return water connections 67 are also providedon opposite sides of the boiler, said connections being preferablydisposed on the outer sides of the lower ends of the side walls or outerwater legs of the sections 3 and 5 as shown. It will be noted that thelower ends of the side walls or outer legs of the sections are increasedin width or extend outwardly beyond the outer sides of the sections asshown. By arranging the water legs or hollow walls of the sections asherein shown and described it will be seen that a large heating surfaceis provided, thus causing the water in the boiler to be quickly heatedas it circulates through said hollow walls and the upper water chambersof the sections.

The sections of the boiler when constructed and connected in the mannerdescribed are supported upon a hollow base 63 in the upper portion ofwhich is arranged a grate 69 which forms the bottom of the fire-box andwhich provides beneath said grate an ash-pit through which the ashes maybe removed through a suitable door 70 arranged in the end of the base asshown. The front end of the base extends upwardly at the central portionthereof and has arranged therein a door 71 which closes the opening l1in the front end of the boiler. It will be noted that when the varioussections of the boiler are assembled that the clean out openings: in thefront wall of the front section of the boiler are in line with thevarious fines of the boiler and thus permit said iues to be readilycleaned when necessary.

From the foregoing description taken in connection with the accompanyingdrawings, the construction and operation of the invention will bereadily understood without requiring a more extended explanation.

' and upper ends of sections-and a series 'of hollow-intermediatesections each of which comprises outer, inktermedi'ate'and inner hollowwater legs, said inner and intermediate water' legs forming the sides ofthe magazine and fire boX of the boiler, water chambers connecting theinner the water legs of said sec,-

' ltions, hollow connections arranged between said water legs to formlongitudinal draft and-smoke and gasconducting'ues, a combustionchamber,y a smoke chamber, said Ichambers communicating with'the vrearends of said'lues, a hollow wall arranged in the .section at the rearend of the magazine, said wall' formingbetween itself and the wall ofthe ifadjoining communicates at its lower end with the fire `box-of theboilerv and atiits upper-end with the combustion lchamber.

2. A boiler comprising hollow front and rear cndsections and aseries ofhollow intermediate sections `each of which ycomprise outerintermediateand innerhollow water legs,:said inner and intermediate water legsforming the sidesof the magazine and fire- "Copiesof this patentY maybeobtained for five cents each, l "Washing'tomll ducting' fiues, outersideof said front end section to form 4o the front of the boiler, ahollow wall ar- -of said rear section,

section, a passage whichy ymv hand in presence oftwo box of-theboiler,water chambers Connecting rangedbetween said water legs to formlongitudinal draft and smoke and gas cona front wall arranged on theranged on said rear end-section to form the rear end of the boiler, ahollowwall connecting the inner legs of the intermediate sectionadjoining-'therear section, said wall 45v aandthe-end wall of the rear'section forming a combustion chamber in the upper portion and a smokechamber'in the lower portion, thereof, said chambers communicating withthe rear vends of said 5o nues, ahollow wall arranged in the section atthe rear end ofthe magazine, said wall vforming `between itselie landthe wall of the adjoining-section a passage which communicates at itslower end with the .fire-box of 55- ythe boiler and at its upper endwith said combustion chamber, and clean out doors arranged inline withthe ends of said flues.

Inftestimony whereof I have hereunto set subscribing wit- 60 lnesses. p

. GUSTAVE F. FUCHS. Witnesses C. A. GRossART, R. H. Winer-IERI'.

by addressing the Commissioner otlatents, u Cl!)

